Fiat Punto MK2 1.2 8v | Ignition Coil Pack Test | Test bobina di accensione | Zündung zündspule test

Описание: Champion (old) vs. Magneti Marelli (brand new)
Ignition Coil Pack Resistance and Continuity Test

UPDATE:
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The measured values of the two installed ignition coils should be the same with very little difference, and the values should be in the reference interval.
In this video you can see that the old Champion coil pack which already run more than 200.000 km is still not bad but in some values the difference is bigger than of the brand new coil pack.
This resistance test is not 100% reliable because under heavy load still a good looking coil pack can fail! The coil pack are connected directly to the engine so it can be very hot and in this way shortening its life.
A bad coil pack can kill the ECU and make engine issues, missfires, it is important to check and not to forget to replace them in time.

Info:
LT is the side where the connector is plugged into the coilpack, Power IN is coming from the ECU.
HT is where the plug leads join the coil, Power OUT.
Coil Pack1 produce outputs to cylinder 1&4
Coil Pack2 produce outputs to cylinder 2&3

UPDATE:
What i recently found is that the correct HT Output resistance (where the plug leads join the coil) should be in interval of 7.3 - 7.5 kOhm and the two coil pack difference should be less than 15%. Consistency between the 2 pairs is important.
LT in resistance should be 0.7~0.8 Ohms

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